检测极限

试样分析变动系数为6.0%；方法检测极限为6×10~（-11）g（Cu）/ml。

Sample analysis gives the coefficient of variation as 6.0 % and the limit of detection as 6 × 10-11 g ( Cu ) / ml.

为什么缓冲容量总是低于检测极限？

Why is my buffer capacity still under the limit of detection ?

常规PCR检测极限为100拷贝。

The detection limit of single PCR was 100 copies .

成功实现了降低LIBS的检测极限的目的。

The purpose of the lower detection limit of LIBS is implemented .

值得一提的是，BRB检测极限甚至可达ppb级，达到了环境保护局（EPA）对汞离子的检测要求。

One thing worthy of note is that the detection limit of BRB is at the parts per billion level , which can satisfy the requirement of Environmental Protection Agency ( EPA ) .

本文提出双脉冲预烧蚀激光诱导击穿光谱以降低LIBS技术的检测极限，并证实了双脉冲预烧蚀LIBS技术在土壤检测方面的可行性。

Orthogonal pre-ablation dual-pulse LIBS was came up to effectively reduce the detection limit of LIBS technology , and confirmed that the pre-ablation dual-pulse LIBS has the feasibility in the aspect of soil testing .

目的：用721可见分光光度法对随机混合血清的肿瘤特异生长因子（TSCF）值进行测定，考察该方法的灵敏度及检测极限。

Objective : To detect tumor specific growth factor ( TSGF ) in randomly mixed serum with 721 visible spectrophotometer , and to investigate the sensitivity and test extremity of this method .

其检测极限低于X-射线衍射法。

Its detection limits are lower than that of X-ray diffration .

关于工件纵向磁化的检测极限

On the Detection - Limit of Workpiece 's Longitudinal Magnetization

电磁层析成像技术的物理机制与检测极限

Physical mechanism and detectability limits of electromagnetic tomography

农田大气检测极限6.5ppb，吸收回收率92.08±4.99%，C。

The detection limit , recoveries and c.

纯培养的检测极限为55个菌。

Limit to detection for pure culture was 55 colony forming units ( CFU ) .

同时结合波长调制和锁相放大器的二次谐波探测技术，提高了系统的信噪比，得到了较高的检测极限灵敏度。

Signal to noise ratio ( SNR ) is improved by using wavelength modulation and second harmonic detection .

甚至在萌发一天之后，乙醛酸支路的酶的活性是处于或低于检测极限的。

The glyoxylate bypass enzymes are at or below the limits of detection , even after a single day of germination .

介绍了电子探针分析的检测极限计算方法与测试技术，并测定了黄铁矿中微量金的含量，提出微量金存在形式的新设想。

In addition the content of trace gold has been determined in pyrites , and the existing forms of micro gold are also presented .

结果显示：在179-756ppb浓度范围内，荧光强度与二氧化硫浓度成线性关系，检测极限为6ppb。

The results show that the fluorescence intensity is linear to sulfur dioxide concentration from 179 ppb to 756 ppb , the detection limit at present is about 6 ppb .

研究了荧光强度与激光功率、碘分子浓度及外加气体的关系，碘的检测极限为7×10~9分子/厘米~3。

The dependence of the fluorescence intensity on the concentration of iodine , laser power and the foreign gases have been examined . A detection limit of 7 × 10 ~ (?) molecule / cm ~ 3 is achieved .

这就使得环境样品分析者要不断的提高分析方法的准确性，缩短分析时间，降低检测极限，建立更加经济有效的检测方法。

So , the analyzers who deal with environmental samples must try their best to improve the accuracy of analysis methods , shorten the analytical time , debase the detection limits , and set up more economical and effective detection methods .

应用Real-timePcR对辣椒种子的DNA进行扩增，分析了辣椒疫霉菌在辣椒种子上的存活时间以及Real-timePcR检测的极限。

DNA of pepper seeds were amplified by Real-time PCR technology , and the survival time of Phytophthora capsici in pepper seeds and the detection limit of Real-time PCR were analysed .

综合考虑测量灵敏度、有效信噪比和极限测量的条件，推导了葡萄糖检测的极限浓度。

Limit resolution concentration for glucose measurement was derived under the full consideration of measurement sensitivity , effective signal-to-noise ratio and measurement limiting condition .

随后详细分析和试验研究了问题产生的原因，不断改变磁化方式，并通过对各种方法的检测灵敏度极限试验分析，找出了解决纵向裂纹充分检出的有效方法，即点磁源磁化方法。

Then further analysis and experiments are conducted to find out the causes that arouse those problems and finally by alternating the magnetizing measures and testing the maximum sensitivity of different methods the author finds an effective testing method for longitudinal cracks , that is the flaky magnet magnetizing method .

高应变动力检测桥梁基桩极限承载力

The application of dynamic high strain method in ultimate bearing capacity test of bridge foundation

敏感性实验结果表明该方法能检测到的极限值为0.4个速殖子，特异性实验结果表明该方法具有特异性强的特点。

The results confirmed that this LAMP method has good sensitivity and specificity , which can detect the limit to 0.4 tachyzoites .

通过测量已知浓度的标准气体，证明应用波长调制技术比静态扫描光谱在重复性、检测精度和检测极限等方面都有明显的改善。

Experiments show that significant improvements can be achieved in repeat accuracy , measurement precision and detection limit by means of the wavelength modulation as opposed to use of the static scanning spectrum .

蚕卵的集团检测研究显示，PCR最高检测极限约为300粒蚕卵中有一粒带毒卵，100粒蚕卵中有一粒带毒卵的检出概率约80%。

Practical examination research illustrates that PCR can sensitively detect pebrine from one silkworm egg , and the most sensitive for pebrine detection is one pebrine egg mixed with 300 normal eggs . The probability of identifying one pebrine egg among 100 normal eggs is about 80 % .

半抗原免疫学检测方法具有较低的检测极限、快速、方便、低廉等优势，是食品安全检测的发展方向。

Hapten immunoassay methods for food safety detection have the advantages of low detection limit , fast detection , convenience and low cost .

系统性能检测实验结果表明，对乙烯气体浓度的检测极限可达到14×10-12；系统长期测量精度优于2%。

System performance measurement shows that the detect limit for ethylene concentration of 14 × 10 - 12 and the accuracy of 2 % are reachable .

循环伏安法和安培计时电流法检测结果显示，氧化亚铜纳米线阵列传感器具有更宽的线性范围，分散纳米线传感器具有更高的灵敏度和检测极限。

The detection results of cyclic voltammetry and amperometry method display that the cuprous oxide nanowire array sensor has a wider linear range , nanowires sensor has a higher sensitivity and detection limit . 3 .